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  2. Arithmetic shift - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_shift

    The two basic types are the arithmetic left shift and the arithmetic right shift. For binary numbers it is a bitwise operation that shifts all of the bits of its operand; every bit in the operand is simply moved a given number of bit positions, and the vacant bit-positions are filled in.

  3. Bitwise operations in C - Wikipedia

    en.wikipedia.org/wiki/Bitwise_operations_in_C

    The symbol of left shift operator is <<. It shifts each bit in its left-hand operand to the left by the number of positions indicated by the right-hand operand. It works opposite to that of right shift operator. Thus by doing ch << 1 in the above example (11100101) we have 11001010. Blank spaces generated are filled up by zeroes as above.

  4. Bitwise operation - Wikipedia

    en.wikipedia.org/wiki/Bitwise_operation

    Left arithmetic shift Right arithmetic shift. In an arithmetic shift, the bits that are shifted out of either end are discarded. In a left arithmetic shift, zeros are shifted in on the right; in a right arithmetic shift, the sign bit (the MSB in two's complement) is shifted in on the left, thus preserving the sign of the operand.

  5. Arithmetic logic unit - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_logic_unit

    Arithmetic shift: the operand is treated as a two's complement integer, meaning that the most significant bit is a "sign" bit and is preserved. Logical shift: a logic zero is shifted into the operand. This is used to shift unsigned integers.

  6. Q (number format) - Wikipedia

    en.wikipedia.org/wiki/Q_(number_format)

    Because the denominator is a power of two, the multiplication can be implemented as an arithmetic shift to the left and the division as an arithmetic shift to the right; on many processors shifts are faster than multiplication and division.

  7. Barrel shifter - Wikipedia

    en.wikipedia.org/wiki/Barrel_shifter

    The very fastest shifters are implemented as full crossbars, in a manner similar to the 4-bit shifter depicted above, only larger. These incur the least delay, with the output always a single gate delay behind the input to be shifted (after allowing the small time needed for the shift count decoder to settle; this penalty, however, is only incurred when the shift count changes).

  8. MIC-1 - Wikipedia

    en.wikipedia.org/wiki/MIC-1

    The ALU (or arithmetic logic unit) has the following input, output and control lines: 2 32-bit input lines: one for the B bus and one for the bus that is connected directly to the H register. 1 32-bit output line, which is connected directly to the shifter. 6 control lines aimed to select which operation to perform.

  9. List of Java bytecode instructions - Wikipedia

    en.wikipedia.org/wiki/List_of_Java_bytecode...

    bitwise shift left of a long value1 by int value2 positions lshr 7b 0111 1011 value1, value2 → result bitwise shift right of a long value1 by int value2 positions lstore 37 0011 0111 1: index value → store a long value in a local variable #index: lstore_0 3f 0011 1111 value → store a long value in a local variable 0 lstore_1 40 0100 0000 ...